Vehicle-spring.



No. 836,345. PATENTED NOV. 20, 1906.

M. L. SENDERLING.

VEHICLE SPRING.

unmuxox FILED APB-.1, 1904.

Mlnesses; 1 2

UNITED STATES PATENT OFFICE.

MARTIN L. SENDERLlNUr, OF JERSEY CITY, NEW JERSEY.

MEHIOLE-SPRING.

No. 836.345. Specification of Letters Patent. Patented Nov. 20, 1906.

' Applieatlon tiled April 1. 1904. Qefisl No 201,134.

To a, whom it 11mg concern:

Be it known that I, MARTiN L. SENDER- LING, a citizen of the United States, and a resident of Jersey City, in the county of Hudson and State of New Jersey, have invented a new and useful Improvement in Vehicle-Springs, of which the following is a specification.

My invention relates to an improvement in vehielesprings; and it consists in a vehicle spring which is so arranged that its loadbearing points will automatically adjust themselves dill'erentially to the weight of the loadi. 2., relative to its leveragetopoints within its primary supp ortin points independently of the shifting of its supportingpoints due to the longitudinal extension or expansion of the spring, thus insuring the maximum power of support to the minimum of compression in a given spring, and thereby preventing overaotion and insuring a less olt to the load carried by the spring.

Practical embodiments of my invention are represented in the accompanying drawin s, in which l ignre 1 represents in side elevation so much of a vehicle as illustrates my improved spring and its adj aeent parts when ap lied to a semi-elli tiospring. I ig. 2 is a sirni ar view showing t e invention ap lied to a full-elliptie spring. Fig. 3 is a. r etail view showing anot 161 way of connecting one end of the sprin to the part which it supports. Fig. 4 is a detail view showing a modified form of connection between the upper and lower members of a lullelliptic spring, and Fig. 5 is a detail view showing another form of eonnoetion between the upper and lower members of a full-elliptic spring.

Th 1} semielliptio spring (represented in Fig. 1) is denoted by 1 and is shown as composed of a plurality of leaves gradually shortening from the top leaf to the bottom leaf. This 5 ring is secured to its support 2 bythe usual 0 ipl3, which support may be the axle of a ve 'ele. The part which is carried by the spring is denoted by 4 and may be any portion of a vehielebody. This part 4 may be providedwith wearing-plates 5 where the art rests upon the top leaf of the sprin l. t is also to be understood that the top eaf may be rovided with a hardened wearingsurfaee, if so desired. A swinging retainingiink B is employed to couple the spring to the part which it su ports. In this form one end of the link is lunged in an eye 7, formed by one of the intermediate leaves of the spring 1, and the other end of the link' s hinged in 9. depending keeper 8, carried by the art 4. which keeper embraces the sides of t e top leaf of the spring for holding the spring a a inst lateral movement. The other end of t e s ring is also held against lateral movement y a keeper 9, which depends from the part 4.

In Fig. 2 I have represented a full-elliptic spring, the lower member being denoted by 16 and the u per member by 11. The upper member of t e s ring is formed of a number of leaves gradua ly shortening in length from the bottom to the top and is secured to the part 12, which it so )ports, by a suitable ehp 13. The lower mom or is also eeniposed of a number of leaves gradually shortening in length from the top to the bottom and is socured to its support 14 by a clip 15 which support may be the axle of the vehicle. A swinging retaining-link 16 is hinged at one end to an ear 17, carried by one of the intermediate leaves of the member 10 of the spring, and the outer end of the link is hinged in an eye 18, formed by bending over the end of the bottom leaf of the member 11 of the spring.

I11 Fi 3 I have shown the swinging rotaining-link 21 for con ling the semi-elliptie spring to the part whie it supports as being hinged at one end to an eye 22, formed by bending over the end of the top leaf of the s ring and hinged at its other end to a log 23,

e ending from the part 4.

In F' 4 I have shown the swinging ret i k 16 hinged at one end to the ear 1'? an at its other end to a keeper 24, dependin from the upper sprin member 11, which lreeper also serves to llold the two spring members a ainst lateral movement with respect to eao other. In this form I have shown the bottom leaf of the upper spring member 11 bent over to form an end protector 25 to the top leaf of the lower sprin members.

In ig. 5 I have shown a housing 26, earried by the bottom leaf of the upper spring member 11, within which housing the top leaf of the lower spring member 10 is 10- oated, the housing serving as a kee or to hold the two members against latera displacement.

In the accompanying drawings I have shown the outer portions of the springs as Bent at a slight angle to the inner portions of the springs, so that the weight of the load will gradually travel inwardly from the priinar supporting-point until the weight of the oad rests upon a predetermined point on the spring, and from this point of the spring the weight of the load will travel much more slowly.

It will be seen that the longitudinal action of the spring, due to its rapidly-shif ting points of bearing, counteracts largely by its indirection the vertical thrust of the spring and rapidly tends to the equilibrium of the latter and inverse to the recoil of the spring. This rapidl -reducing leverage operates to reduce the i orce of the thrust exerted by the load upon a lessens the e act upon its consequent ulti mate power or capacity both as to CO1 npression and as to recoil than if the thrust was exerted by the load upon a point of the spring acting as a lever upon said point as a fulcrum.

It will be seen that a common form of spring cannot accomplish the results which 1 this invention accomplishes, for as the common form of spring compresses it also e.\'- pands or extends, and thus Increases the leverage instead of decreasing it.

What I claim 1s- 1. A vehicle-spring, a support therefor, a part supported by the spring, said spring,

iven point of the spring and providing a close contact of its face with said part, against which part it has a longitudinally-shifting contact between its primary 1 bearing-points, and a swinging retaining- 5 link secured to the said spring and to the said i part supported by the spring.

- 2. A vchicle spring, a support therefor, a part supported by the spring said sprin I providing a close contact of its l ace with sai I part, against which part it has a longitudinally-shifting contact between its primar bearing-points, and a swinging retaining-lin l secured to said sprin at a distance from its support and also to t c said part supported 1 by the spring.

3. A full-elliptic spring, a support for the 1 lower member, a part supported by the upper member, the two members havin a close contact of their faces and arran e to shift their points of contact within t e primary 1 supporting-point and a link connecting the two members In testimony that I claim the foregoing as my invention I have signed my name, in presence of two witnesses, this th day of 1 March, 1904.

MARTIN L. SENDERLING.

\Vitnesses:

FREDK. HAYNEs, HENRY TninMn 

